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Duplicate openssl pkey -in private.pem -pubout -out pubkey.pem

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How to output the public part of a private key: Demonstrates how to duplicate this OpenSSL command:
openssl pkey -in private.pem -pubout -out pubkey.pem

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Local $bSuccess = False

$oPkey = ObjCreate("Chilkat.PrivateKey")

; Load the private key from an PEM file:
$bSuccess = $oPkey.LoadPemFile("private.pem")
If ($bSuccess = False) Then
    ConsoleWrite($oPkey.LastErrorText & @CRLF)
    Exit
EndIf

$oPubKey = ObjCreate("Chilkat.PublicKey")
$oPkey.ToPublicKey($oPubKey)

$bSuccess = $oPubKey.SavePemFile(False,"pubKey.pem")
If ($bSuccess <> True) Then
    ConsoleWrite($oPubKey.LastErrorText & @CRLF)

    Exit
EndIf

ConsoleWrite("Success." & @CRLF)